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United States Patent | 5,219,323 |
Singer ,   et al. | June 15, 1993 |
Apparatus and methods of rotating a non-functioning wrist by flexing or extending the associated elbow may be activated by muscle action of the wearer or by an elbow actuator. Cuffs above and below the elbow that receive the wrist and arm are interlinked in a manner that permits varying of the degree of supination and pronation of the wrist to the needs of the wearer. Also, the angle of elbow flexion at which wrist rotation starts and stops can be varied by adjusting the operating mechanism.
Inventors: | Singer; Robert D. (Clive, IA); Trickey; Ernest A. (Des Moines, IA) |
Assignee: | ElectroBionics Corporation (Ankeny, IA) |
Appl. No.: | 718774 |
Filed: | June 21, 1991 |
Current U.S. Class: | 602/16; 601/33; 602/20; 602/21; 623/61 |
Intern'l Class: | A61F 005/10 |
Field of Search: | 602/5,16,20,21,23-27,29 128/25 R,26,881 623/57,59,61 482/94,139 |
43590 | Jul., 1864 | Koeller | 623/61. |
2135018 | Nov., 1938 | Svensson | 482/94. |
2542316 | Feb., 1951 | Farrar, Jr. | 623/61. |
2626398 | Jan., 1953 | Grindle et al. | 623/59. |
2767708 | Oct., 1956 | Keropian | 602/21. |
3089700 | May., 1963 | Hotas | 482/94. |
3683897 | Aug., 1972 | Shield et al. | 128/25. |
3707963 | Jan., 1973 | Keropian | 602/21. |
4237873 | Dec., 1980 | Terry et al. | 602/20. |
4433679 | Feb., 1984 | Mauldin et al. | 602/20. |
4538595 | Sep., 1985 | Hajianpour | 128/25. |
4559932 | Dec., 1985 | Salort | 602/20. |
4612919 | Sep., 1986 | Best | 602/16. |
4651719 | Mar., 1987 | Funk et al. | 602/20. |
4669451 | Jun., 1987 | Blauth et al. | 128/25. |
4809688 | Mar., 1989 | Aymerica del Valle et al. | 602/21. |
5002044 | Mar., 1991 | Catter | 602/21. |
5117814 | Jun., 1992 | Luttrell et al. | 128/25. |